Data Structures
struct	_EFI_SMART_CARD_READER_PROTOCOL

Macros
#define	EFI_SMART_CARD_READER_PROTOCOL_GUID

#define	SCARD_AM_READER 0x0001

#define	SCARD_AM_CARD 0x0002

#define	SCARD_CA_NORESET 0x0000

#define	SCARD_CA_COLDRESET 0x0001

#define	SCARD_CA_WARMRESET 0x0002

#define	SCARD_CA_UNPOWER 0x0003

#define	SCARD_CA_EJECT 0x0004

#define	SCARD_PROTOCOL_UNDEFINED 0x0000

#define	SCARD_PROTOCOL_T0 0x0001

#define	SCARD_PROTOCOL_T1 0x0002

#define	SCARD_PROTOCOL_RAW 0x0004

#define	SCARD_UNKNOWN 0x0000 /* state is unknown */

#define	SCARD_ABSENT 0x0001 /* Card is absent */

#define	SCARD_INACTIVE 0x0002 /* Card is present and not powered*/

#define	SCARD_ACTIVE 0x0003 /* Card is present and powered */

#define	SCARD_CTL_CODE(code) (0x42000000 + (code))

#define	CM_IOCTL_GET_FEATURE_REQUEST SCARD_CTL_CODE(3400)

Typedefs
typedef struct _EFI_SMART_CARD_READER_PROTOCOL	EFI_SMART_CARD_READER_PROTOCOL

typedef IN UINT32	AccessMode

typedef IN UINT32 IN UINT32	CardAction

typedef IN UINT32 IN UINT32 IN UINT32	PreferredProtocols

typedef IN UINT32 IN UINT32 IN UINT32 OUT UINT32 *	ActiveProtocol

typedef OUT CHAR16 *	ReaderName

typedef OUT CHAR16 IN OUT UINTN *	ReaderNameLength

typedef OUT CHAR16 IN OUT UINTN OUT UINT32 *	State

typedef OUT CHAR16 IN OUT UINTN OUT UINT32 OUT UINT32 *	CardProtocol

typedef OUT CHAR16 IN OUT UINTN OUT UINT32 OUT UINT32 OUT UINT8 *	Atr

typedef OUT CHAR16 IN OUT UINTN OUT UINT32 OUT UINT32 OUT UINT8 IN OUT UINTN *	AtrLength

typedef IN UINT8 *	CAPDU

typedef IN UINT8 IN UINTN	CAPDULength

typedef IN UINT8 IN UINTN OUT UINT8 *	RAPDU

typedef IN UINT8 IN UINTN OUT UINT8 IN OUT UINTN *	RAPDULength

typedef IN UINT32	ControlCode

typedef IN UINT32 IN UINT8 *	InBuffer

typedef IN UINT32 IN UINT8 IN UINTN	InBufferLength

typedef IN UINT32 IN UINT8 IN UINTN OUT UINT8 *	OutBuffer

typedef IN UINT32 IN UINT8 IN UINTN OUT UINT8 IN OUT UINTN *	OutBufferLength

typedef IN UINT32	Attrib

Functions
typedef	EFI_STATUS (EFIAPI EFI_SMART_CARD_READER_CONNECT)(IN EFI_SMART_CARD_READER_PROTOCOL This

Variables
EFI_GUID	gEfiSmartCardReaderProtocolGuid

Detailed Description

The UEFI Smart Card Reader Protocol provides an abstraction for device to provide smart card reader support. This protocol is very close to Part 5 of PC/SC workgroup specifications and provides an API to applications willing to communicate with a smart card or a smart card reader.

Copyright (c) 2015, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Macro Definition Documentation

#define CM_IOCTL_GET_FEATURE_REQUEST SCARD_CTL_CODE(3400)

#define EFI_SMART_CARD_READER_PROTOCOL_GUID

Value:

{ \
      0x2a4d1adf, 0x21dc, 0x4b81, {0xa4, 0x2f, 0x8b, 0x8e, 0xe2, 0x38, 0x00, 0x60} \
    }

#define SCARD_ABSENT 0x0001 /* Card is absent */

#define SCARD_ACTIVE 0x0003 /* Card is present and powered */

#define SCARD_AM_CARD 0x0002

#define SCARD_AM_READER 0x0001

#define SCARD_CA_COLDRESET 0x0001

#define SCARD_CA_EJECT 0x0004

#define SCARD_CA_NORESET 0x0000

#define SCARD_CA_UNPOWER 0x0003

#define SCARD_CA_WARMRESET 0x0002

#define SCARD_CTL_CODE ( code ) (0x42000000 + (code))

#define SCARD_INACTIVE 0x0002 /* Card is present and not powered*/

#define SCARD_PROTOCOL_RAW 0x0004

#define SCARD_PROTOCOL_T0 0x0001

#define SCARD_PROTOCOL_T1 0x0002

#define SCARD_PROTOCOL_UNDEFINED 0x0000

#define SCARD_UNKNOWN 0x0000 /* state is unknown */

Typedef Documentation

typedef IN UINT32 AccessMode

typedef IN UINT32 IN UINT32 IN UINT32 OUT UINT32* ActiveProtocol

typedef OUT CHAR16 IN OUT UINTN OUT UINT32 OUT UINT32 OUT UINT8* Atr

typedef OUT CHAR16 IN OUT UINTN OUT UINT32 OUT UINT32 OUT UINT8 IN OUT UINTN* AtrLength

typedef IN UINT32 Attrib

typedef IN UINT8* CAPDU

typedef IN UINT8 IN UINTN CAPDULength

typedef IN UINT32 CardAction

typedef OUT CHAR16 IN OUT UINTN OUT UINT32 OUT UINT32* CardProtocol

typedef IN UINT32 ControlCode

typedef struct _EFI_SMART_CARD_READER_PROTOCOL EFI_SMART_CARD_READER_PROTOCOL

typedef IN UINT32 IN UINT8* InBuffer

typedef IN UINT32 IN UINT8 IN UINTN InBufferLength

typedef IN UINT32 OUT UINT8 * OutBuffer

typedef IN UINT32 OUT UINT8 IN OUT UINTN * OutBufferLength

typedef IN UINT32 IN UINT32 IN UINT32 PreferredProtocols

typedef IN UINT8 IN UINTN OUT UINT8* RAPDU

typedef IN UINT8 IN UINTN OUT UINT8 IN OUT UINTN* RAPDULength

typedef OUT CHAR16* ReaderName

typedef OUT CHAR16 IN OUT UINTN* ReaderNameLength

typedef OUT CHAR16 IN OUT UINTN OUT UINT32* State

Function Documentation

typedef EFI_STATUS ( EFIAPI * EFI_SMART_CARD_READER_GET_ATTRIB )

This function requests connection to the smart card or the reader, using the appropriate reset type and protocol.

The SCardConnectfunction requests access to the smart card or the reader. Upon success, it is then possible to call SCardTransmit.

If AccessMode is set to SCARD_AM_READER, PreferredProtocols must be set to SCARD_PROTOCOL_UNDEFINED and CardAction to SCARD_CA_NORESET else function fails with EFI_INVALID_PARAMETER.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in]	AccessMode	Codes of access mode.
[in]	CardAction	SCARD_CA_NORESET, SCARD_CA_COLDRESET or SCARD_CA_WARMRESET.
[in]	PreferredProtocols	Bitmask of acceptable protocols.
[out]	ActiveProtocol	A flag that indicates the active protocol.

Return values

EFI_SUCCESS	The requested command completed successfully.
EFI_INVALID_PARAMETER	This is NULL
EFI_INVALID_PARAMETER	AccessMode is not valid.
EFI_INVALID_PARAMETER	CardAction is not valid.
EFI_INVALID_PARAMETER	Invalid combination of AccessMode/CardAction/ PreferredProtocols.
EFI_NOT_READY	A smart card is inserted but failed to return an ATR.
EFI_UNSUPPORTED	PreferredProtocols does not contain an available protocol to use.
EFI_NO_MEDIA	AccessMode is set to SCARD_AM_CARD but there is no smart card inserted.
EFI_ACCESS_DENIED	Access is already locked by a previous SCardConnectcall.
EFI_DEVICE_ERROR	Any other error condition, typically a reader removal.

This function releases a connection previously taken by SCardConnect.

The SCardDisconnect function releases the lock previously taken by SCardConnect. In case the smart card has been removed before this call, thisfunction returns EFI_SUCCESS. If there is no previous call to SCardConnect, this function returns EFI_SUCCESS.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in]	CardAction	Codes for card action.

Return values

EFI_SUCCESS	The requested command completed successfully.
EFI_INVALID_PARAMETER	This is NULL
EFI_INVALID_PARAMETER	CardAction value is unknown.
EFI_UNSUPPORTED	Reader does not support Eject card feature (disconnect was not performed).
EFI_DEVICE_ERROR	Any other error condition, typically a reader removal.

This function retrieves some basic information about the smart card and reader.

The SCardStatusfunction retrieves basic reader and card information.

If ReaderName, State, CardProtocolor Atris NULL, the function does not fail but does not fill in such variables.

If EFI_SUCCESS is not returned, ReaderName and Atr contents shall not be considered as valid.

Parameters

[in]	This	Indicates a pointer to the calling context.
[out]	ReaderName	A pointer to a NULL terminated string that will contain the reader name.
[in,out]	ReaderNameLength	On input, a pointer to the variablethat holds the maximal size, in bytes,of ReaderName. On output, the required size, in bytes, for ReaderName.
[out]	State	Current state of the smart card reader.
[out]	CardProtocol	Current protocol used to communicate with the smart card.
[out]	Atr	A pointer to retrieve the ATR of the smart card.
[in,out]	AtrLength	On input, a pointer to hold the maximum size, in bytes, of Atr(usually 33). On output, the required size, inbytes, for the smart card ATR.

Return values

EFI_SUCCESS	The requested command completed successfully.
EFI_INVALID_PARAMETER	This is NULL
EFI_INVALID_PARAMETER	ReaderName is not NULL but ReaderNameLength is NULL
EFI_INVALID_PARAMETER	Atr is not NULL but AtrLength is NULL
EFI_BUFFER_TOO_SMALL	ReaderNameLength is not big enough to hold the reader name. ReaderNameLength has been updated to the required value.
EFI_BUFFER_TOO_SMALL	AtrLength is not big enough to hold the ATR. AtrLength has been updated to the required value.
EFI_DEVICE_ERROR	Any other error condition, typically a reader removal.

This function sends a command to the card or reader and returns its response.

The protocol to use to communicate with the smart card has been selected through SCardConnectcall.

In case RAPDULength indicates a buffer too small to holdthe response APDU, the function fails with EFI_BUFFER_TOO_SMALL.

Parameters

[in]	This	A pointer to the EFI_USBFN_IO_PROTOCOLinstance.
[in]	CAPDU	A pointer to a byte array thatcontains the Command APDU to send to the smart card or reader.
[in]	CAPDULength	Command APDU size, in bytes.
[out]	RAPDU	A pointer to a byte array that will contain the Response APDU.
[in,out]	RAPDULength	On input, the maximum size, inbytes, of the Response APDU. On output, the size, in bytes, of the Response APDU.

Return values

EFI_SUCCESS	The requested command completed successfully.
EFI_INVALID_PARAMETER	This is NULL.
EFI_INVALID_PARAMETER	CAPDU is NULL or CAPDULength is 0.
EFI_BUFFER_TOO_SMALL	RAPDULength is not big enough to hold the response APDU. RAPDULength has been updated to the required value.
EFI_NO_MEDIA	There is no card in the reader.
EFI_NOT_READY	Card is not powered.
EFI_PROTOCOL_ERROR	A protocol error has occurred.
EFI_TIMEOUT	The reader did not respond.
EFI_ACCESS_DENIED	A communication with the reader/card is already pending.
EFI_DEVICE_ERROR	Any other error condition, typically a reader removal.

This function provides direct access to the reader.

This function gives direct control to send commands to the driver or the reader. The ControlCode to use is vendor dependant; the only standard code defined is the one to get PC/SC part 10 features.

InBuffer and Outbuffer may be NULL when ControlCode operation does not require them.

Parameters

[in]	This	Indicates a pointer to the calling context.
[in]	ControlCode	The control code for the operation to perform.
[in]	InBuffer	A pointer to the input parameters.
[in]	InBufferLength	Size, in bytes, of input parameters.
[out]	OutBuffer	A pointer to the output parameters.
[in,out]	OutBufferLength	On input, maximal size, in bytes, to store output parameters. On output, the size, in bytes, of output parameters.

Return values

EFI_SUCCESS	The requested command completed successfully.
EFI_INVALID_PARAMETER	This is NULL.
EFI_INVALID_PARAMETER	ControlCode requires input parameters but: InBuffer is NULL or InBufferLenth is NULL or InBuffer is not NULL but InBufferLenth is less than expected.
EFI_INVALID_PARAMETER	OutBuffer is not NULL but OutBufferLength is NULL.
EFI_UNSUPPORTED	ControlCode is not supported.
EFI_BUFFER_TOO_SMALL	OutBufferLength is not big enough to hold the output parameters. OutBufferLength has been updated to the required value.
EFI_NO_MEDIA	There is no card in the reader and the control code specified requires one.
EFI_NOT_READY	ControlCode requires a powered card to operate.
EFI_PROTOCOL_ERROR	A protocol error has occurred.
EFI_TIMEOUT	The reader did not respond.
EFI_ACCESS_DENIED	A communication with the reader/card is already pending.
EFI_DEVICE_ERROR	Any other error condition, typically a reader removal.

This function retrieves a reader or smart card attribute.

Possibly supported attrib values are listed in "PC/SC specification, Part 3: Requirements for PC-Connected Interface Devices".

Parameters

[in]	This	Indicates a pointer to the calling context.
[in]	Attrib	Identifier for the attribute to retrieve.
[out]	OutBuffer	A pointer to a buffer that will contain attribute data.
[in,out]	OutBufferLength	On input, maximal size, in bytes, to store attribute data. On output, the size, in bytes, of attribute data.

Return values

EFI_SUCCESS	The requested command completed successfully.
EFI_INVALID_PARAMETER	This is NULL.
EFI_INVALID_PARAMETER	OutBuffer is NULL or OutBufferLength is 0.
EFI_BUFFER_TOO_SMALL	OutBufferLength is not big enough to hold the output parameters. OutBufferLength has been updated to the required value.
EFI_UNSUPPORTED	Attribis not supported
EFI_NO_MEDIA	There is no card in the reader and Attrib value requires one.
EFI_NOT_READY	Attrib requires a powered card to operate.
EFI_PROTOCOL_ERROR	A protocol error has occurred.
EFI_TIMEOUT	The reader did not respond.
EFI_DEVICE_ERROR	Any other error condition, typically a reader removal.

Variable Documentation

EFI_GUID gEfiSmartCardReaderProtocolGuid

Data Structures

Macros

Typedefs

Functions

Variables

Detailed Description

Macro Definition Documentation

Typedef Documentation

Function Documentation

Variable Documentation